Identify the compound, which give iodoform test:
Correct answer: B. Methyl ketone
- A. Methanol
- B. Methyl ketone
- C. 3- Hexanol
- D. Propionaldehyde
Explanation
The iodoform test is a way to detect the presence of a methyl ketone. In this test, we mix the methyl ketone (a ketone with a methyl group attached) with iodine in the presence of a base, such as sodium hydroxide (NaOH). If the methyl ketone is present, it undergoes a reaction with the iodine and base, forming a yellow precipitate of iodoform. The iodoform has a distinct smell, similar to that of antiseptic. So, the iodoform test is a handy way to identify the presence of methyl ketones.
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About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
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